EXHIBIT 3.2

                        CERTIFICATE OF AMENDMENT TO THE

                     CERTIFICATE OF LIMITED PARTNERSHIP OF

                            EQUISTAR CHEMICALS, LP

          Pursuant to the provisions of Section 17-202 of the Delaware Revised
Uniform Limited Partnership Act, this Certificate of Amendment to the
Certificate of Limited Partnership of Equistar Chemicals, LP (the
"Partnership"), is being duly executed and filed by Lyondell Petrochemical G.P.
Inc., a Delaware corporation and a general partner of the Partnership and by PDG
Chemical Inc., a Delaware corporation and a newly admitted general partner of
the Partnership.

1.   Name.  The name of the limited partnership is Equistar Chemicals, LP.
     ----                                                                 

2.   Amendment.  The Certificate of Limited Partnership of the Partnership
     ---------                                                            
     is hereby amended to provide that PDG Chemical Inc. has been admitted as a
     general partner of the Partnership. The business address of PDG Chemical
     Inc. is:

                    c/o Occidental Chemical Corporation
                    5005 LBJ Freeway
                    Dallas, Texas  75244
                    Attn:  Senior Vice President and General Counsel


Dated:  May 15, 1998
 
                              Lyondell Petrochemical G.P. Inc.



                              By: /s/ Dan F. Smith
                                 --------------------------------
                                 Name:  Dan F. Smith
                                 Title: President and Chief Executive Officer
 
                              PDG Chemical Inc.



                              By: /s/ R.J. Schuh
                                  --------------------------------
                                  Name:  R.J. Schuh
                                  Title: President


                        CERTIFICATE OF AMENDMENT TO THE

                     CERTIFICATE OF LIMITED PARTNERSHIP OF

                            EQUISTAR CHEMICALS, LP

          Pursuant to the provisions of Section 17-202 of the Delaware Revised
Uniform Limited Partnership Act, this Certificate of Amendment to the
Certificate of Limited Partnership of Equistar Chemicals, LP (the
"Partnership"), is being duly executed and filed by Lyondell Petrochemical G.P.
Inc., a Delaware corporation and a general partner of the Partnership and by PDG
Chemical Inc., a Delaware corporation and a newly admitted general partner of
the Partnership.

1.   Name.  The name of the limited partnership is Equistar Chemicals, LP.
     ----                                                                 

2.   Amendment.  The Certificate of Limited Partnership of the Partnership
     ---------                                                            
     is hereby amended to replace the general partner, PDG Chemical Inc., with 
Occidental Petrochem Partner GP, Inc. The address of Occidental Petrochem 
Partner GP, Inc. is:

                    c/o Occidental Chemical Corporation
                    5005 LBJ Freeway
                    Dallas, Texas  75244
                    Attn:  Senior Vice President and General Counsel


Dated:  September 14, 1998
 
                              Lyondell Petrochemical G.P. Inc.



                              By: /s/ Kerry Galvin
                                 --------------------------------
                                 Name:  Kerry Galvin
                                 Title: Vice President and Secretary
 
                              Occidental Petrochem Partner GP, Inc.



                              By: /s/ Linda S. Peterson
                                  --------------------------------
                                  Name:  Linda S. Peterson
                                  Title: Assistant Secretary